Digital Waveguide Mesh

In §C.12, the theory of multiport scattering was derived, i.e., the reflections and transmissions that occur when $N$ digital waveguides having wave impedances $R_i$ are connected together. It was noted that when $N$ is a power of two, there are no multiplies in the scattering relations Eq.(C.105), and that this fact has been used to build multiply-free reverberators and other structures using digital waveguide meshes [435,521,147,400,523,524,402,403,405,55,204,325,324,326,427,33].